BenQ RP6502NFC Manual Del Usuario página 3

The antenna and module are integrated on a board and do not need to be installed.
The module has been tested as an independent unit together with other necessary
accessories or support units during testing.
Antenna Type: Loop antenna
Antenna is the Antenna after matching, and the normal operation is the matched
Antenna working, the working principle is an LC oscillation with a frequency of
13.56Mhz. This Antenna has no gain, but Q value is given, which is an attribute
of this Antenna
An Antenna Coil is the Coil itself, which is essentially an inductive Coil